Portland State University. Department of Biology
Earl R. Rosenwinkel
Date of Publication
Master of Science (M.S.) in Biology
1 online resource (67 p.)
Soil samples taken from a clearcut and adjacent uncut site of a Douglas Fir and Western Hemlock old growth forest in the Cascade Range of southern Washington showed greatly reduced adult and juvenile population densities of macro-phytophagous, microphytophagous, and predatory soil acari in the clearcut. These effects appeared to be due to high lethal summer litter temperatures and reduced pore spaces due to scarification. Also, the number of species of acari in the clearcut was lower than in the control after clearcutting.
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Orlaske, Sue Ellen, "Changes in populations of soil acari during the first year after clearcutting" (1979). Dissertations and Theses. Paper 2901.